Construction of boats.



W. H. COLE.

GONSTRUOTION 0F BOATS.

APPLICATION FILED MAR. 24, 1908.

Patented July 13, 1909.

2 SHEETS-SHEET 1.

*Qtkmi Circular mar poms cow, 1

Q Ste e-k vemyomemant echo. m\ View INVENTOR WITNESSES mumoosuwzns.Msvwomn, n. c.

W. H. COLE.

CONSTRUCTION OF BOATS.

APPLICATION FILED MAR. 24, 1908.

927,640. Patented July 13, 1909.

2 SHEETS-SHEET 2.

III

WITNESSES INVENTOR mnnzw. n. unmm 00., PNOYO-LIYHOCRAFNERS. WASKINGYDN.n c.

WILLIAM H. COLE, OF PHILADELPHIA, PENNSYLVANIA.

CONSTRUCTION OF BOATS.

Specification of Letters Patent.

Application filed March '24, 1908.

Patented July 13, 1909.

Serial No. 422,953.

To all whom it may concern:

Be it known that I, WILLIAM H. Core, of Philadelphia, county ofPhiladelphia, and State of Pennsylvania, have invented a new and usefulImprovement in the Construction of Boats, of which the following is apeciticatlon.

My invention relates to the manufacture of boats, especially smallpleasure and life boats.

The invention consists of a cork composition, ctn'isisting of granularcork and oxidized linseed oil, reinforced with a perforated steel sheet,as a material suitable for boat construction.

I propose to stamp steel sheets into forms best adapted to the severalkinds of boats, then perforate the said. steel sheets with asemi-circular perforation forming lips on both sides of the steel sheet,and cover said steel sheet on both sides with a suitable thickness ofsaid cork composition, and subject the whole structure to a pressure ofhigh degree with dies made of concrete or other uitable material, makinga complete form for boats. By this arrangement I got a structure that isespecially adapted for boats of the kind herein mentioned, inasmuch asthe cork material will make the boat buoyant, and by submitting the corkcomposition to the said pressure I get a resilient material which whenreinforced with the sheet of steel makes a strong serviceable amtbuoyant boat that can be manufactured cheaply and be used with a degreeof safety and satisfaction not found in boats of other construction.

I do not claim that the use of cork in connection with boat constructionis a new idea, but what I do claim as being a new idea and original inmy invention is the combination of the cork material with the steelreinforcement, and the arrangement of the steel reinforcement with thisparticular kind of a semi-circular perforation or lip extending fromboth sides of the steel sheet which is pressed into the cork compositionand when subjected to a pressure makes the whole structure a solid andsubstantial mass especially desirable for boat construct ion.

Figurel isasectionalview. Fig.2 perspective View partly in section.

Similar letters refer to similar parts throughout both drawings.

In Fig. 1 A- represents the granular cork composition held to steelreinforcement, B- by projecting perforations or steel lips.

In Fig. 2: A represents the cork composition on both sides of the steelreinftn'cement, I3 held securely in place by projecting steel lips.

The steel sheets are to be pressed into such forms as will be suitablefor the several kinds of boats and the semi-circular perforationsforming the lips on both sides of the steel sheet will be made with diesand forced out from the surface of steel sheet for the purpose ofholding the cork composition to the steel reinforcement making astructure desirable for boats as above described.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is- 1. A boat comprising an inner and outerlining of granular corkcomposition with an intermediate metallicreinforcement, said rcinforcement provided with fastening lipsprojecting into said cork linings.

2. A boat structure consisting of perforated steel sheet with an innerand outer lining of granular cork composition subjected to a pressure of6000 pounds to the square inch.

3. A boat structure consisting of a perforated steel sheet with an outerand inner lining of granular cork composition, the outer lining being ofthe proportion of half of that of the inner lining.

t. A steel reinforcement for boat construction with semiwlrcularprojecting lips, so arranged that projections point alternately uptoward thegunwales and down toward the keel of the boat.

5. A perforated steel boat structure with an outer and inner lining ofgranular cork composition made water tight by subjection to greatpressure.

In testimony whereof I affix my signature in presence of two witnesses.

IVllrlrIAM ll. COLE.

\Vitnesses I. W. TnoMPsoN, 0. WV. SAvnnY.

